// 实现这个项目的构建任务

const { src, dest, series, parallel, watch } = require('gulp');
const del = require('del');
const browserSync = require('browser-sync');
const loadPlugins = require('gulp-load-plugins');
const plugins = loadPlugins();
const bs = browserSync.create();
const data = {
  menus: [
    {
      name: 'Home',
      icon: 'aperture',
      link: 'index.html'
    },
    {
      name: 'Features',
      link: 'features.html'
    },
    {
      name: 'About',
      link: 'about.html'
    },
    {
      name: 'Contact',
      link: '#',
      children: [
        {
          name: 'Twitter',
          link: 'https://twitter.com/w_zce'
        },
        {
          name: 'About',
          link: 'https://weibo.com/zceme'
        },
        {
          name: 'divider'
        },
        {
          name: 'About',
          link: 'https://github.com/zce'
        }
      ]
    }
  ],
  pkg: require('./package.json'),
  date: new Date()
};
const clean = () => {
  return del(['dist', '.temp']);
};

const cleanTemp = () => {
  return del(['.temp']);
};

// 样式的编译任务
const style = () => {
  return src('src/assets/styles/*.scss', { base: 'src' })
    .pipe(plugins.sass({ outputStyle: 'expanded' }))
    .pipe(dest('.temp'))
    .pipe(bs.reload({ stream: true }));
};

// 脚本编译任务
const script = () => {
  return src('src/assets/scripts/*.js', { base: 'src' })
    .pipe(plugins.babel({ presets: ['@babel/preset-env'] }))
    .pipe(dest('.temp'))
    .pipe(bs.reload({ stream: true }));
};

// 页面文件编译
const page = () => {
  return src('src/*.html', { base: 'src' })
    .pipe(plugins.swig({ data, defaults: { cache: false } }))
    .pipe(dest('.temp'))
    .pipe(bs.reload({ stream: true }));
};

// 图片文件转换任务
const image = () => {
  return src('src/assets/images/**', { base: 'src' })
    .pipe(plugins.imagemin())
    .pipe(dest('dist'));
};

// 字体文件转换任务
const font = () => {
  return src('src/assets/fonts/**', { base: 'src' })
    .pipe(plugins.imagemin())
    .pipe(dest('dist'));
};

// 其他文件转化任务
const extra = () => {
  return src('public/**', { base: 'public' })
    .pipe(dest('dist'));
};

// 依赖任务
const useref = () => {
  return src('.temp/*.html', { base: '.temp' })
    .pipe(plugins.useref({ searchPath: ['.temp', '.'] }))
    .pipe(plugins.if(/\.js$/, plugins.uglify()))
    .pipe(plugins.if(/\.css$/, plugins.cleanCss()))
    .pipe(plugins.if(/\.html$/, plugins.htmlmin({
      collapseWhitespace: true,
      minifyCSS: true,
      minifyJS: true
    })))
    .pipe(dest('dist'));
};

// 开发服务任务
const serve = () => {
  watch('src/assets/styles/*.scss', style);
  watch('src/assets/scripts/*.js', script);
  watch('src/*.html', page);

  watch([
    'src/assets/images/**',
    'src/assets/fonts/**',
    'public/**'
  ], bs.reload);

  bs.init({
    notify: false,
    port: 2080,
    server: {
      baseDir: ['.temp', 'src', 'public'],
      routes: {
        '/node_modules': 'node_modules'
      }
    }
  });
};
const eslint = () => {
  return src('src/assets/scripts/*.js')
    .pipe(plugins.eslint())
    .pipe(plugins.eslint.format())
    .pipe(plugins.eslint.failAfterError());
};

const sassLint = () => {
  return src('src/assets/styles/*.scss')
    .pipe(plugins.sassLint())
    .pipe(plugins.sassLint.format())
    .pipe(plugins.sassLint.failOnError());
};
const lint = parallel(eslint, sassLint);

const compile = parallel(style, script, page);

const start = series(lint, compile, serve);

const build = series(
  clean,
  parallel(
    series(
      lint,
      compile,
      useref
    ),
    image,
    font,
    extra
  ),
  cleanTemp
);


const deploy = done => {
  // return src('dist/**')
  //   .pipe(plugins.rsync({
  //     root: 'Application/',
  //     hostname: '122.51.37.153',
  //     username: 'Administrator',
  //     destination: 'test/',
  //     incremental: true,
  //     progress: true,
  //     relative: true,
  //     recursive: true
  //   }));
  console.log('？？？');
  done();
};

module.exports = {
  clean,
  lint,
  serve,
  build,
  start,
  deploy
};